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	<title>运算符练习</title>
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	<!--<script type=text/javascript>
		var x=12;
			y=x+3;
		alert(y)
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		var x=11
			y=x%2
		alert(y)
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	<script type=text/javascript>
		var x=2;
			x+=3
		alert(x)
	</script>












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